Protonation and electrochemical reduction of rhodium- and iridium-dinitrogen complexes in organic solution

Gannon P. Connor, Nicholas Lease, Andrea Casuras, Alan S Goldman, Patrick L. Holland, James M. Mayer

Research output: Contribution to journalArticle

2 Citations (Scopus)

Abstract

Protonation and reduction of pincer-ligated Rh- and Ir-N2 complexes have been studied by NMR spectroscopy and cyclic voltammetry to assess the capability of these complexes to activate or reduce N2. Protonation, which is a prerequisite to electrochemical reduction, results in a cationic metal-hydride that loses N2 under an atmosphere of Ar. Reduction of the metal-hydride results in fast disproportionation of an unobserved transient Ir2+ species. These studies suggest that the regioselectivity of initial protonation is a strong determinant for the ability of a system to facilitate the reduction of N2.

Original languageEnglish
Pages (from-to)14325-14330
Number of pages6
JournalDalton Transactions
Volume46
Issue number41
DOIs
Publication statusPublished - Jan 1 2017

Fingerprint

Iridium
Rhodium
Protonation
Hydrides
Metals
Regioselectivity
Nuclear magnetic resonance spectroscopy
Cyclic voltammetry

ASJC Scopus subject areas

  • Inorganic Chemistry

Cite this

Protonation and electrochemical reduction of rhodium- and iridium-dinitrogen complexes in organic solution. / Connor, Gannon P.; Lease, Nicholas; Casuras, Andrea; Goldman, Alan S; Holland, Patrick L.; Mayer, James M.

In: Dalton Transactions, Vol. 46, No. 41, 01.01.2017, p. 14325-14330.

Research output: Contribution to journalArticle

Connor, Gannon P. ; Lease, Nicholas ; Casuras, Andrea ; Goldman, Alan S ; Holland, Patrick L. ; Mayer, James M. / Protonation and electrochemical reduction of rhodium- and iridium-dinitrogen complexes in organic solution. In: Dalton Transactions. 2017 ; Vol. 46, No. 41. pp. 14325-14330.
@article{cc1a6df75bb64e14a1c67f4ab9b72de5,
title = "Protonation and electrochemical reduction of rhodium- and iridium-dinitrogen complexes in organic solution",
abstract = "Protonation and reduction of pincer-ligated Rh- and Ir-N2 complexes have been studied by NMR spectroscopy and cyclic voltammetry to assess the capability of these complexes to activate or reduce N2. Protonation, which is a prerequisite to electrochemical reduction, results in a cationic metal-hydride that loses N2 under an atmosphere of Ar. Reduction of the metal-hydride results in fast disproportionation of an unobserved transient Ir2+ species. These studies suggest that the regioselectivity of initial protonation is a strong determinant for the ability of a system to facilitate the reduction of N2.",
author = "Connor, {Gannon P.} and Nicholas Lease and Andrea Casuras and Goldman, {Alan S} and Holland, {Patrick L.} and Mayer, {James M.}",
year = "2017",
month = "1",
day = "1",
doi = "10.1039/c7dt03476h",
language = "English",
volume = "46",
pages = "14325--14330",
journal = "Dalton Transactions",
issn = "1477-9226",
publisher = "Royal Society of Chemistry",
number = "41",

}

TY - JOUR

T1 - Protonation and electrochemical reduction of rhodium- and iridium-dinitrogen complexes in organic solution

AU - Connor, Gannon P.

AU - Lease, Nicholas

AU - Casuras, Andrea

AU - Goldman, Alan S

AU - Holland, Patrick L.

AU - Mayer, James M.

PY - 2017/1/1

Y1 - 2017/1/1

N2 - Protonation and reduction of pincer-ligated Rh- and Ir-N2 complexes have been studied by NMR spectroscopy and cyclic voltammetry to assess the capability of these complexes to activate or reduce N2. Protonation, which is a prerequisite to electrochemical reduction, results in a cationic metal-hydride that loses N2 under an atmosphere of Ar. Reduction of the metal-hydride results in fast disproportionation of an unobserved transient Ir2+ species. These studies suggest that the regioselectivity of initial protonation is a strong determinant for the ability of a system to facilitate the reduction of N2.

AB - Protonation and reduction of pincer-ligated Rh- and Ir-N2 complexes have been studied by NMR spectroscopy and cyclic voltammetry to assess the capability of these complexes to activate or reduce N2. Protonation, which is a prerequisite to electrochemical reduction, results in a cationic metal-hydride that loses N2 under an atmosphere of Ar. Reduction of the metal-hydride results in fast disproportionation of an unobserved transient Ir2+ species. These studies suggest that the regioselectivity of initial protonation is a strong determinant for the ability of a system to facilitate the reduction of N2.

UR - http://www.scopus.com/inward/record.url?scp=85032589461&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=85032589461&partnerID=8YFLogxK

U2 - 10.1039/c7dt03476h

DO - 10.1039/c7dt03476h

M3 - Article

AN - SCOPUS:85032589461

VL - 46

SP - 14325

EP - 14330

JO - Dalton Transactions

JF - Dalton Transactions

SN - 1477-9226

IS - 41

ER -